Mount Vernon, Pennsylvania Weather Forecast Discussion

892
FXUS61 KCTP 081845
AFDCTP
Area Forecast Discussion
National Weather Service State College PA
245 PM EDT Mon Sep 8 2025
.SYNOPSIS...
* High pressure stretches from the Midwest to the mid Atlantic
  region will maintain dry conditions through most or all of
  this week with daytimes featuring partly to mostly sunny skies
  and low humidity. Any early morning valley fog will dissipate
  by 10 AM each day.
&&
.NEAR TERM /THROUGH TONIGHT/...
Fair weather cumulus dots the canvas this afternoon and evening
with clouds dissipating through sunset.
Issued a frost advisory through 12z/Tue for the north central
most tier of counties as temperatures dip once again to 32-35
overnight. Discussion with surrounding offices based on
temperatures dipping below NBM forecasts.
Temperatures through Tueaday morning will be several degrees
below normal.
&&
.SHORT TERM /TUESDAY THROUGH TUESDAY NIGHT/...
Dry weather with abundant sunshine and light wind will continue
on Tuesday, though temperatures trend a few degrees higher,
with most of Central Pennsylvania seeing highs in the low to mid
70s.
High res models show a light easterly flow setting up Tuesday
night which may result in a stratus deck moving into the far
east and southeast zones by morning. Can not rule a brief period
of drizzle (~10%).
&&
.LONG TERM /WEDNESDAY THROUGH SUNDAY/...
West of the above-mentioned clouds into the first half of
Wednesday, abundant sunshine and dry conditions are favored
into the end of the week. Temperatures will trend warmer for
Wednesday thanks to a building ridge aloft. A weak, moisture-
starved cold front will track through the region Wednesday night
into Thursday, but no sensible weather impacts are expected.
Temperatures may drop slightly for Thursday and Friday behind
this front, but a warming trend is expected into the weekend.
Some guidance shows another shortwave moving through Saturday
night into Sunday, potentially bringing a few showers along with
it, but uncertainty remains high.
&&
.AVIATION /19Z MONDAY THROUGH SATURDAY/...
High pressure will provide VFR conditions through the 18Z TAF
period. Skies will clear out overnight and winds will go calm,
allowing for patchy valley fog formation, especially over
northern PA. Impacts at any TAF sites appear unlikely, though
BFD would have the best chance (

NWS CTP Office Area Forecast Discussion